Retest-reliability and convergent validity of noninvasive blood pressure determination: arm sphygmomanometry vs. Peñaz-method.
Blood pressure is usually determined by arm sphygmomanometry. However, this technique does not allow continuous blood pressure monitoring. Over the last years, a technique introduced by Peñaz makes it feasible to determine blood pressure noninvasively and continuously from the finger artery. Study on 46 normotensives showed that both methods have high retest-reliabilities for systolic blood pressure while for diastolic blood pressure, arm sphygmomanometry resulted in lower reliabilities than the Peñaz-method. Between-method-comparisons showed only small correlations. Diastolic blood pressure levels were significantly lower in the Peñaz-method than in arm sphygmomanometry. In conclusion, blood pressure levels determined by arm sphygmomanometry and the Peñaz-method differ systematically because of different methodologies. If blood pressure or blood pressure changes are determined, the method and the circumstances of its application need to be carefully reported.
Kugler
J
J
Dept. of Medical Psychology, University Hospital of RWTH, Aachen, Germany.
Rollnik
J
J
Schmitz
N
N
D000328:Adult; D018660:Blood Pressure Monitoring, Ambulatory / Q000379:methods* / Q000592:standards; D005260:Female; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D019722:Sphygmomanometers / Q000592:standards*